Book: "Get Up!: Why Your Chair Is Killing You and What You Can Do About It" by James A. Levine

Quote: "A quick check to see if you have your chair desk fit about right is to note your elbow height in relation to the desktop. Your elbow crease should rest on top of the desk" (page 62).

Bibliography: Levine, J. A. (2014). Get Up!: Why Your Chair Is Killing You and What You Can Do About It. Macmillan.